private function init() {

		/** BBCode Parse Properties *******************************************/

		// Setup smiley URL & path
		$this->bbcode_parser_properties = array(
			'smiley_url' => includes_url( 'images/smilies' ),
			'smiley_dir' => '/' . WPINC . '/images/smilies'
		);

		/** Sanitize Options **************************************************/

		$this->clean         = ! empty( $_POST['_bbp_converter_clean'] );
		$this->convert_users = (bool) get_option( '_bbp_converter_convert_users', false );
		$this->halt          = (bool) get_option( '_bbp_converter_halt',          0     );
		$this->max_rows      = (int)  get_option( '_bbp_converter_rows',          100   );

		/** Sanitize Connection ***********************************************/

		$db_user   = get_option( '_bbp_converter_db_user',   DB_USER     );
		$db_pass   = get_option( '_bbp_converter_db_pass',   DB_PASSWORD );
		$db_name   = get_option( '_bbp_converter_db_name',   DB_NAME     );
		$db_host   = get_option( '_bbp_converter_db_server', DB_HOST     );
		$db_port   = get_option( '_bbp_converter_db_port',   ''          );
		$db_prefix = get_option( '_bbp_converter_db_prefix', ''          );

		// Maybe add port to server
		if ( ! empty( $db_port ) && ! empty( $db_host ) && ! strstr( $db_host, ':' ) ) {
			$db_host = "{$db_host}:{$db_port}";
		}

		/** Get database connections ******************************************/

		// Setup WordPress Database
		$this->wpdb = bbp_db();

		// Setup old forum Database
		$this->opdb = new BBP_Converter_DB( $db_user, $db_pass, $db_name, $db_host );

		// Connection failed
		if ( ! $this->opdb->db_connect( false ) ) {
			$error = new WP_Error( 'bbp_converter_db_connection_failed', esc_html__( 'Database connection failed.', 'bbpress' ) );
			wp_send_json_error( $error );
		}

		// Maybe setup the database prefix
		$this->opdb->prefix = $db_prefix;

		/**
		 * Don't wp_die() uncontrollably
		 */
		$this->wpdb->show_errors( false );
		$this->opdb->show_errors( false );

		/**
		 * Syncing
		 */
		$this->sync_table_name = $this->wpdb->prefix . 'bbp_converter_translator';
		$this->sync_table      = $this->sync_table_name === $this->wpdb->get_var( "SHOW TABLES LIKE '{$this->sync_table_name}'" )
			? true
			: false;

		/**
		 * Character set
		 */
		$this->charset = ! empty( $this->wpdb->charset )
			? $this->wpdb->charset
			: 'UTF8';

		/**
		 * Default mapping.
		 */

		/** Forum Section *****************************************************/

		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_status',
			'default'      => 'publish'
		);
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'comment_status',
			'default'      => 'closed'
		);
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'ping_status',
			'default'      => 'closed'
		);
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_type',
			'default'      => 'forum'
		);

		/** Topic Section *****************************************************/

		$this->field_map[] = array(
			'to_type'      => 'topic',
			'to_fieldname' => 'post_status',
			'default'      => 'publish'
		);
		$this->field_map[] = array(
			'to_type'      => 'topic',
			'to_fieldname' => 'comment_status',
			'default'      => 'closed'
		);
		$this->field_map[] = array(
			'to_type'      => 'topic',
			'to_fieldname' => 'ping_status',
			'default'      => 'closed'
		);
		$this->field_map[] = array(
			'to_type'      => 'topic',
			'to_fieldname' => 'post_type',
			'default'      => 'topic'
		);

		/** Post Section ******************************************************/

		$this->field_map[] = array(
			'to_type'      => 'reply',
			'to_fieldname' => 'post_status',
			'default'      => 'publish'
		);
		$this->field_map[] = array(
			'to_type'      => 'reply',
			'to_fieldname' => 'comment_status',
			'default'      => 'closed'
		);
		$this->field_map[] = array(
			'to_type'      => 'reply',
			'to_fieldname' => 'ping_status',
			'default'      => 'closed'
		);
		$this->field_map[] = array(
			'to_type'      => 'reply',
			'to_fieldname' => 'post_type',
			'default'      => 'reply'
		);

		/** User Section ******************************************************/

		$this->field_map[] = array(
			'to_type'      => 'user',
			'to_fieldname' => 'role',
			'default'      => get_option( 'default_role' )
		);
	}